John Zak, M.D. appears in the CMS NPPES registry as a Specialist provider holding M.D. credentials at 570 MEMORIAL CIR STE 110, Ormond Beach, FL, 32174, with a listed phone of (386) 437-5980. NPI 1548210594 was issued on 05/11/2006.

Medicare Part D records for calendar year 2023 show 983 prescription claims written by this provider, covering 313 Medicare beneficiaries and totaling roughly $172K in drug spend, split 10% brand-name and 90% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider carries a Final Score of 75/100 for the 2023 performance year, but CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score: this is the neutral performance threshold CMS assigns where nothing was scored, so it is not comparable with clinicians whose score was measured.

Specialist is a high-volume specialty nationwide, with 69,608 enrolled providers across 55 states and an average of 1,474 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.

Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.